CN102887307A - Novel underwater oil storage device adopting oil-gas displacement - Google Patents
Novel underwater oil storage device adopting oil-gas displacement Download PDFInfo
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- CN102887307A CN102887307A CN2011102062174A CN201110206217A CN102887307A CN 102887307 A CN102887307 A CN 102887307A CN 2011102062174 A CN2011102062174 A CN 2011102062174A CN 201110206217 A CN201110206217 A CN 201110206217A CN 102887307 A CN102887307 A CN 102887307A
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Abstract
The invention discloses a novel underwater oil storage device adopting oil-gas displacement. The device is composed of a main tank body, an oil inlet pipeline, an oil outlet pipeline, a gas inlet-outlet pipeline, a water inlet-outlet pipeline and a gas storage tank. The gas storage tank is filled with high-pressure nitrogen, and nitrogen belongs to inert gas, and is relatively stable, lower than oil in density, always positioned above the oil, and insoluble with oil. An underwater oil storage function is realized by virtue of the working principle that gas can be compressed via the oil-gas displacement, namely, the nitrogen is compressed during oil inlet and is released during oil outlet. According to the device, the conventional oil-water mixture of oil-water replacement can be avoided, and the pollution can be reduced; and simultaneously, the high-pressure nitrogen belongs to be common inert gas and is low in cost, and the oil-gas displacement is easy to realize.
Description
Technical field
What the present invention relates to is a kind of seabed Fuel Tanking Unit of field of ocean engineering.
Background technology
Oil-gas gathering and transportation mainly comprises oil storage space and the oil gas treatment facility that FPSO, semisubmersible platform etc. are attached troops to a unit in the deepwater oilfield exploitation at present, these facility common features are that oil gas is processed and the main floating mode facility that relies on of storage, the Floating Production pattern can be considered as mature technology in the world, have many preceences, but owing to be subject to the great force of marine stormy waves, no matter be that offshore structure or its tendon system cost are high, and along with the increase of the depth of water, technical risk is more and more higher, and the facility cost sharply raises.Under the prerequisite that solves oil gas primary treatment problem under the high undersea hydrostatic pressures condition, the defeated pattern of the collection effective way of can yet be regarded as under water.Along with marginal oil field more and more obtains exploitation, underwater oil storing device will become a kind of trend simultaneously.Underwater oil storing device is the oil isolated from water formula at present, and its liner material is that the oil isolated from water material requirements is very high, and the oil isolated from water place can form oil mixing with water.
Summary of the invention
The present invention is for the shortcoming of existing underwater oil storing device oil mixing with water, oil gas displacement type underwater oil storing device is proposed, underwater oil storing device adopts (former) oil (nitrogen) gas substitute mode, can avoid producing oil mixing with water, for later underwater oil storing device provides a new oil storage method.
The technical scheme that technical solution problem of the present invention adopts is that new-type oil gas displacement underwater oil storing device is comprised of main tank body, chargine line, fuel-displaced pipeline, intake and exhaust pipeline, intake-discharge pipe road and storage tank.Storage tank is equipped with high pressure nitrogen, and nitrogen is unreactable gas, and is more stable, and its density ratio oil is low, be in the top of oil, and both is immiscible always.Utilizing the oil gas displacement is oil-feed compressed nitrogen, fuel-displaced release nitrogen, and the principle of work that gas can compress realizes oil storage function under water.
The invention has the beneficial effects as follows the oil water mixture that can avoid oil and water displacement in the past, reduce and pollute that high pressure nitrogen is for unreactable gas commonly used simultaneously, with low cost, the oil gas displacement is easy to realize.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the underwater oil storing device scheme drawing.
1-main tank body wherein; 2-chargine line; 3-fuel-displaced pipeline; 4-intake and exhaust pipeline; 5-storage tank; 6-advance discharge port.
The specific embodiment
As shown in Figure 1, utilize buoyancy to be dragged to the work place, inject seawater by advancing in 6 pairs of main tank bodies 1 of discharge port, sink under the water.After finishing installation, discharge the seawater in the main tank body 1 and open simultaneously storage tank 5 valves, utilize difference of pressure nitrogen to enter in the tank body by intake and exhaust pipeline 4 and reach the state that is full of, structure enters mode of operation.When carrying out oil storage, rely on oil pressure by chargine line 2 crude oil to be injected in the tank, nitrogen will progressively be compressed to storage tank 5; When crude oil is exported, utilize pumping system suction crude oil, crude oil is by fuel-displaced pipeline 3 outputs, and nitrogen is with the automatic filling space.When needs are shifted, in tank body, are full of nitrogen and can make the Oil Tank Body floating.
Claims (1)
1. a new-type oil gas displacement underwater oil storing device is comprised of main tank body, chargine line, fuel-displaced pipeline, intake and exhaust pipeline, intake-discharge pipe road and storage tank, storage tank is equipped with high pressure nitrogen, utilize pressure official post nitrogen to enter in the tank body by the intake and exhaust pipeline and reach the state that is full of, when carrying out oil storage, rely on oil pressure by chargine line crude oil to be injected in the tank, nitrogen will progressively be compressed to storage tank; When crude oil is exported, utilize pumping system suction crude oil, crude oil is by fuel-displaced pipeline output, and nitrogen when needs are shifted, are full of the automatic filling space nitrogen and can make the Oil Tank Body floating in tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102062174A CN102887307A (en) | 2011-07-22 | 2011-07-22 | Novel underwater oil storage device adopting oil-gas displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102062174A CN102887307A (en) | 2011-07-22 | 2011-07-22 | Novel underwater oil storage device adopting oil-gas displacement |
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| Publication Number | Publication Date |
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| CN102887307A true CN102887307A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102062174A Pending CN102887307A (en) | 2011-07-22 | 2011-07-22 | Novel underwater oil storage device adopting oil-gas displacement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151580A (en) * | 2015-08-28 | 2015-12-16 | 湖北海洋工程装备研究院有限公司 | Oil storage tank |
| CN105501416A (en) * | 2015-12-16 | 2016-04-20 | 深圳海油工程水下技术有限公司 | Underwater oil collecting tank and using method thereof |
| CN109991094A (en) * | 2019-05-07 | 2019-07-09 | 张化机（苏州）重装有限公司 | A kind of horizontal hydraulic test method of large pressurized vessel |
| CN111570412A (en) * | 2020-05-11 | 2020-08-25 | 鲍永强 | Oil gas displacement type auxiliary sinking ball for cleaning oil-containing silt |
-
2011
- 2011-07-22 CN CN2011102062174A patent/CN102887307A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105151580A (en) * | 2015-08-28 | 2015-12-16 | 湖北海洋工程装备研究院有限公司 | Oil storage tank |
| CN105151580B (en) * | 2015-08-28 | 2017-11-24 | 湖北海洋工程装备研究院有限公司 | A kind of oil storage tank |
| CN105501416A (en) * | 2015-12-16 | 2016-04-20 | 深圳海油工程水下技术有限公司 | Underwater oil collecting tank and using method thereof |
| CN109991094A (en) * | 2019-05-07 | 2019-07-09 | 张化机（苏州）重装有限公司 | A kind of horizontal hydraulic test method of large pressurized vessel |
| CN111570412A (en) * | 2020-05-11 | 2020-08-25 | 鲍永强 | Oil gas displacement type auxiliary sinking ball for cleaning oil-containing silt |
| CN111570412B (en) * | 2020-05-11 | 2021-12-10 | 天津中嘉仪器仪表有限公司 | Oil gas displacement type auxiliary sinking ball for cleaning oil-containing silt |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |